薄煤层对拉工作面开采的工作面长度研究

On Length of Double-unit Mining Face in Thin Coal Seam

薄煤层高产高效开采渐显重要。对拉工作面可在一定程度上提升工作面生产能力。文章分析了制约工作面长度的诸多因素,并通过实例确定了对拉工作面上、下工作面长度的比例,为保证上、下工作面均衡发展提供了理论依据。

It is increasingly important to mine in thin coal seam with high-yield-high-efficiency. Double-unit face could increase the productivity of mining face to some degree. The article analyzed the constraints of the length of working face. On the analysis of the real cases, the ratio of the upper to the lower working face of the double-unit face was determined, which laid a theoretical foundation for the balanced development of the upper and lower working faces.